Study period
	Allocation1	Post-allocation				Follow-up data	Close-out
Timepoint	0	Months 1–3	Months 4–6	Months 7–9	Months 10–12	Months 13–15	Months 16–18
Enrolment
Eligibility screen	X
Informed consent	X
Control (C) Intervention (I)
Cluster 1		C	I	I	I
Cluster 2		C	C	I	I
Cluster 3		C	C	C	I
Assessments
Demographic data		X	X	X	X	X
Medication data		X	X	X	X	X
Safety data		X	X	X	X	X
Nursing Home Site Assessment Questionnaire		X
RPATD2 Questionnaire: Older Adult Version		X
RPATD2 Questionnaire : Caregiver Version		X
User Feedback Survey			X		X
Acceptability and Feasibility Survey						X
Implementation Evaluation Interview			X	X	X
End Of Study Feedback Interview					X
Data analysis						X	X

¹As this is a cluster randomized controlled trial, allocation occurs at the cluster level

²RPATD Revised Patient Attitude Towards Deprescribing